Frame, Chassis & Cage:
 Suspension, Steering & Brakes:
 Transmissions Clutches & Driveshaft:
Interior: Weight:
 Engines& Exhaust:
Body:
 Fuel Cells: “CRATE MOTOR OPTIONS” 
Height: Tires & Wheels:
 Safety Requirements:
KAWARTHA SPEEDWAY RULES
LIMITED LATE MODEL RULES 2007

Frame, Chassis & Cages:

  1. Tubular frames on all models main frame rail members shall have a minimum of:
    10 inch perimeter tubing 095 wall thickness AND
    12 inch perimeter tubing
    16 inch perimeter tubing .083 wall thickness
  2. Fabricated front frame sections are allowed. Fabricated front clip must be built with either 2”x3” or 2”x4” steel with a minimum wall thickness of .095. The vertical side portions of front cross member must be a minimum of 2”x3” steel, .095 wall tubing. The horizontal portion of cross member may be no smaller than 1 _”x3” steel, .095 wall tubing. 2”x3” front frame clips will carry 40 lbs. of ballast mounted in front of cross member. 2”x4” front
    frame clips will carry 25 lbs. of ballast in front of cross member. Weight must be equally split side to side and mounted on frame rails. Stock factory production front frame clips will be allowed. If used, stock front clip rails must extend from in front of steering box rearward and attach to main frame rails.
  3. Rear frame section must be constructed of a minimum 10” perimeter square tubing with a minimum wall thickness of .095. Rear clips may be under-slung design. If under-slung rear clip is used one of the following options must be used. Car will carry a 25 lbs. weight penalty on top of total weight already required, or car may have 50 lbs. of its existing required weight mounted above the rear end housing.
  4. Sections extending such as front and rear clips must be a minimum of 10 inches in perimeter and have a minimum of .095 wall thickness and extend 10 inches minimum beyond wheel base. Rear clip must extend beyond fuel cell area.
  5. Main frame rails must be no less than 28 inches outside of rail to centre line of chassis.
  6. Main frame rails and clips may not be pierced or drilled or otherwise altered for the purpose of reducing weight.
  7. Frame and roll cage must be perimeter designed. Maximum off-set allowed in 1 inch from centre line of tread width.
  8. No off-set/straight rail style chassis allowed.
  9. All cars required to have a 4 point roll cage. Roll cage must be symmetrical in all directions and constructed of a minimum 1 _ diameter .095 wall tubing.
  10. 4 curved horizontal door bars on driver’s side required with minimum of 2 vertical bars between each horizontal bar. Minimum height of door bars 22 _ inches from bottom of frame rail. Must be constructed of a minimum 1 _diameter, .095 wall tubing.
  11. Minimum length of door bars 42 inches.
  12. 16 guage steel welded within door bar structure, or mounted between door bars and door skin is strongly recommended.
  13. X bars on right side of cage will be allowed.
  14. Total height of roll cage to be 40 _ inches from bottom of frame rail. Halo to be no less than 1 inch lower. Width of halo to be no less than 46 inches from outside to outside of tubing.
  15. Dash bar required, along with an “X” type member across and behind driver.
  16. One piece of tubing running perpendicular between halo in top of cage, centred, is required.
  17. A so called, “Petty Bar” must be present to prevent right front corner of halo from collapsing in the event of a rollover.
  18. Left leg protection bar must be installed between roll cage and left front frame rail.
  19. All main cage structure must be constructed of minimum 1 _ tubing .095 wall thickness. Material must be mild steel.

Interior:

  1. Interior of car must be completely enclosed in respect to engine compartment, track surface, tires and rear fuel cell compartment. Interior panels must be a minimum of .040 thickness aluminum or steel.
  2. 20 gauge sheet metal is mandatory 18 inches high at foot firewall, 9 inches high along driver’s tunnel and 18 inches high behind seat.
  3. Right side interior panel may begin beside drivers seat and extend on an angle to the inner edge of the top of the passenger door panel.
  4. A full width dash is required in all cars. Vertical surface of dash must project in a single plane across car. Top horizontal plane of the dash should carry forward to the firewall and enclosed entire area beneath windshield.
  5. Only 1 rear view mirror is allowed. No side mirrors.
  6. Roll bar padding mandatory.

Eligible Bodies:

  1. Bodies are to be template style. Example: 5 Star, ARP, etc… Bodies must be after market made of steel, aluminum or fibreglass. ABC body configuration is strongly recommended. Rubber front and rear bumper covers are recommended. Approved 5 Star/ARP plastic/rubber fenders are permitted. NO CARBON FIBER BODY PANELS ALLOWED.
    1. No wedge style, slab side bodies.
    2. No high performance bodies.
    3. No Dirt noses

    Following Models allowed:

    1. Dodge Intrepid/Charger
    2. Oldsmobile Cutlass
    3. Ford Taurus/Fusion
    4. Buick Regal
    5. Pontiac Grand Prix
    6. Chevrolet Monte Carlo/Impala SS

  2. Bodies must meet tech visual approval. Weight penalties may be imposed at Tech Director’s discretion for violations. No mixing and matching of body panels. Only approved bodies will be allowed to compete.
  3. Truck bodies will be allowed to compete at Invitational Events only with approval from Kawartha Inspectors
  4. Rub Rails are allowed. Must be neat in appearance.
  5. All body panels must be complete in length and width. Over all workmanship shall be a determining factor as to whether a car shall be approved for competition. Specified components’ compliance to templates and overall level of workmanship and appearance will be considered by technical inspectors.
  6. Roof Height will be 46 inches measured from ground to centre of roof 10 inches back from edge of windshield.
  7. Front nose height shall be no less than 4 inches above ground.
  8. Rocker panels shall be no less than 4 inches above ground.
  9. All heights measured with driver out of car.
  10. Rear spoiler must be made of .090 minimum thickness smooth aluminum or lexan with a maximum size of 62 inches wide and 5 inches high. Maximum height from ground to top of spoiler 39 inches. No side enclosures, no lips, or bends in upper portion of spoiler and must be flush to vertical surfaces of deck lid. Spoilers must be non-adjustable.
  11. Hood and trunk must be removable or hinged. If hood is removable, must have at least 4 front pins and 2 rear pins. If hinged, minimum of 4 front pins allowed. If trunk is removable, 4 pins are required, 1 at each corner. If hinged, 2 rear pins will be allowed.
  12. A full windshield within factory 5-Star/ARP specifications, is mandatory and must be constructed of 1/8 inch minimum thickness lexan. 2 internal windshield braces spaced at least at 5 inch centres and roughly centred in windshield constructed of minimum 1 inch wide by 1/8 inch thick material are mandatory.
  13. Models with rear 1/4 windows may have openings covered with securely mounted, solid clear lexan. Rear side windows may have approved air vents. “A” pillar windows not to exceed 6 inches in any direction measured from front of door opening.
  14. A full dimension rear glass constructed of minimum 1/8 inch thickness lexan is mandatory and must be held securely in place with a minimum of 2 external straps. Back window must be securely braced internally to prevent significant bowing or distortion at racing speed.
  15. A piece of 20 ga. metal is recommended between roof and drivers head if running a fibreglass roof.
  16. A quality paint job is mandatory on all cars with high contrast numbers for legibility, day or night. Bodies must be kept neat and painted at all times. No metallic numbers.
  17. A minimum 24 inch high, 3 inch stroke number is required on the door area on both sides of the car. A minimum of 30 inch high, 3 inch stroke number is required on top of roof facing the passenger side of car. A block style number on right head light cover and right tail light covered is required. All numbers must be Kawartha Speedway registered and/or assigned. Number alterations may be required at any time by Kawartha Speedway to avoid duplication.
  18. When ABC body is used, all heights and measurements must meet criteria laid out in ABC mounting instructions. These will be the dimensions you will be inspected with. ABC body dimensions will vary from those listed above.

    Heights:

    1. 1. Frame heights will be a minimum of 5 inches measured at lowest point of chassis to ground.
    2. Engine height will be a minimum of 11 inches measured from centre of crankshaft to ground.
    3. Minimum height of Nose and Rocker Panels shall be no less than 4 inches.
    4. Minimum height of Roof as measured 10 inches back of windshield shall be no less than 46 inches.
    5. Maximum height of Rear Spoiler shall be no greater than 39 inches on body configurations not conforming to ABC body rules.
    6. Fuel cell can, will be a minimum height 9 inches from ground.
    7. All heights are measured with driver out of car.

    Suspension, Steering and Brakes:

    1. All cars will have a minimum wheelbase of 104 1/2 inches measured from centre of lower ball joint to centre of rear end housing.
    2. Maximum track width will be 66 inches front and rear.
    3. No rack & pinion steering allowed. Stock type steering box required. After market steering components allowed.
    4. Lower control arms must be stock and mounted in stock location. Lower control arms may be different length side to side to achieve desired camber. Measurement from grease fitting to inner mounting point of control arm must have no more than a 1” variance from stock length in either direction. Inner pivots of lower control arms may be rubber bushing,
      urethane bushing, or steel mono-ball. Ford lower strut arms may use heim joints.
    5. Tubular upper control arms are allowed. Control arm must be steel with the exception of the cross shaft, which may be aluminum.
    6. Maximum of 4 load bolts allowed.
    7. One shock per wheel. No Re-buildable shocks of any type allowed. No aluminum shocks allowed. Shocks may be adjustable. Remote adjustment shocks not allowed. No coil over shock and spring assemblies allowed. No coil-over eliminators allowed. Springs must be a minimum 4 inch outside diameter. Leaf spring rear suspension is allowed. Spring rubbers are allowed. One shock, one spring per wheel. Any type spring and shock assembly allowed. Shock brand must be KONI, and the following numbers will be permitted: KON30-7436, KON30-7325, KON30-9436, KON30-9325.
    8. Spindles must be steel and may be fabricated. Heavy-duty stock type spindles are also allowed.
    9. Hubs must be stock type. Heavy Duty hubs are allowed. Front hubs must be steel. Rear hubs may be aluminum. Hubs may be 2 piece hub and rotor assemblies. Hubs may be drilled to accept larger wheel studs. Wheel studs must be a minimum of 5/8”. Hubs may be floater type. 5x5 Hubs only. Wide 5 hubs are not allowed.
    10. Sway bar must be mounted on bottom side of front clip and work off of the lower control arms.
    11. Rear ends may have floating type bearing and hub such as Ford 9 inch. Quick change rear ends not allowed. Axle tubes must be steel. Gun-drilled axles are allowed. Mini spools are allowed. Full spools are allowed. Spools may be steel or aluminum. Ford 9” carrier (differential housing) may be aluminum. No cambered rear ends allowed. Rear wheels must be driven with solid flange drive plates. All running gear drainage plugs must be safety wired. NO TITANIUM PARTS ALLOWED.
    12. Truck arm or 3 point type rear suspension mounting allowed. Rear trailing arms may use rubber bushings and/or heim joints at mounting points. Upper link pivot with rubber bushings allowed. Any type of spring devices located in trailing arms or upper link will not be permitted. No Dual Action upper links allowed. No fifth coils, no Watts linkage, no torque arms and no mechanical devices to transfer weight while car is in motion.
    13. Solid tubular pan hard bar only. No rubber or spring devices located within bar allowed. One bar, 2 adjustable heim joints only.
    14. Brakes (all 4) must be single piston callipers made of steel and all 4 must be in good working order. Brake rotors must be a minimum of _ inch thick and made of steel. If using OEM style, one-piece, front hub and rotor assembly, OEM, cross-drilled replacement hub and rotor assembly may be used. Master cylinders and pedals of any type allowed. No brake fluid re-circulators allowed.

     Gear Rule:

    1. Final drive ratio may not be greater than 5.50 at Kawartha or Mosport.  This will be waived for events of 75 laps or more.

     Weight:

    1. All weights include driver (no substitutes). 55% left side maximum
    2. Minimum of 50% of total weight must be maintained on front of car.
    3. All cars with “Built Motor” with maximum of 9.5 – 1 comp. ratio must weigh a minimum of 3050 lbs.
    4. All cars with “Built Motor” with maximum of 10-1 comp. ratio must weigh a minimum of 3,100 pounds.
    5. Cars with FORD built motor will weigh a minimum of 3150 if headers are
      used.
    6. All cars with CRATE MOTOR (GM 88958602) will weigh a minimum of 3000 lbs. with a 55% left side maximum.
    7. Ballast weight must be securely attached to main frame rail or major cross member structure. No lead shot or liquid type ballast permitted. Ballast to be in blocks of no less than 5 pounds.
    8. There will be NO spent fuel allowance for regular heat races and feature events.
    9. INVITATIONAL EVENTS of 50 laps or greater will give a spent fuel allowance of 50lbs.
    10. Track scales are considered final.

    Fuel Cells:

    1. Fuel cells mandatory and must be approved by Technical Inspector. Fuel cell will be a maximum of 22 gallon. It is mandatory that the fuel cell be enclosed in a 20 gauge, welded steel box with a bolt on cover, constructed of 20 gauge steel. Fuel cell must be protected in back and on sides by .095, 1 _ O.D. tubing. Check valve vent is required on all fuel cells.
    2. If fender mounted fuel filler is used it must face to the inside of the track.
    3. Fuel pump must be mechanical. No electric fuel pumps.
    4. Any fuel line passing through interior must be inside steel tubing. No plastic or glass fuel filters.
    5. All cars must have a fully operational fuel shut off valve located in main fuel line that is easily accessible for driver and safety crews.

    Tires and Wheels:

    1. All wheels must be after market racing type wheels made of steel. Wheels will be a maximum width of 8 inches, bead to bead.
    2. Specified track tire mandatory on all 4 wheels. Tires will be available at track.
    3. Chemical treating of tires will not be allowed. A durometer rule will be in effect regarding minimum tire hardness.
    4. Tire relief valves are allowed.

     Transmissions, Clutches and Drive Shafts:

    1. Clutch and Flywheel must be stock type replacement (Corvette Style or SVO flywheel with minimum weight of 14 pounds). No 10, 000 RPM style. No triple disc clutches. Steel shatter-proof bell housing is mandatory.
    2. Clutch and pressure plate must be a minimum 10 inch diameter. “Stock Type” pressure plate and clutch disc required. Clutch disc may be “puck type”. No aluminum.
    3. Starter must be in stock position and functional.
    4. Transmission must be stock OEM unaltered automatic or stock OEM unaltered standard with all gears working.
    5. Automatic transmissions designed for racing will NOT be allowed.
    6. Torque converter must be stock and a minimum of 11 inches.
    7. Shifter may be any type.
    8. Drive shafts must be steel and painted white.
    9. Two drive shaft loops to fully enclose drive shaft are mandatory. Loops must be no less than 2 inch wide and 1/4 inch thick and must be fastened to chassis front and rear.

    Engines and Exhaust:

    • CRATE MOTOR OPTION WILL EXIST AT KAWARTHA SPEEDWAY IN 2008. Sealed Crate Motor # GM 88958602 will be allowed.
    • Engine make and body make may be interchanged.
    • Engine must be mounted with foremost spark plug even or ahead of a line projected across upper ball joints.
    • Engine height will be a minimum of 11 inches as measured from centre of crankshaft to ground. (with-out driver in car)

    Build Motor Options

    1. Maximum cubic inch displacement allowed:
      GM Ford Chrysler
      350 351 360
                                        
    2. Maximum overbore allowed is .060.
    3. Maximum compression ratio 10 : 1 on teardown and 10.4 : 1 on the whistler.
    4. Bore and Stroke must be factory spec (example: 350 Chev-3.48 stroke x 4 inch bore). No stroked or destroked motors.
    5. Crankshaft must be stock OEM type only.
    6. No dome pistons. Only flat top or dished pistons are allowed. Pistons cannot protrude above the deck of the block.
    7. No aluminum engine blocks.
    8. Stock type connecting rods only. 6” connecting rods are allowed.
    9. Harmonic balancer must be OEM steel elastomer-type balancer only. No aluminum or fluid damper balancers allowed.
    10. Any hydraulic flat tappet camshafts. No mechanical. No mushroom or roller camshafts. Off-set camshaft key is allowed. Must maintain stock diameter lifter and lifter bore for that make and model of engine. No gear drive or belt-drive systems.
    11. No roller rockers allowed. Rockers and push rods to be stock for engine. Screw in studs and guide plates allowed. No stud girdles allowed. No rev kits allowed.
    12. Stock OEM or World Products Cast Iron Straight Plug Cylinder Heads Only. No polishing, coating or porting of heads. GM angle plug heads are not allowed. GM heads with 292 casting number are not allowed. Vortec heads are not allowed on built motor option. World Products cylinder head part #43600-1, #43610-1, casting #1-052 or Dart SR heads are allowed for GM. Any machine work must be concentric to the valve stem. No relieving about or below the head of the valves. No un-shrouding of the valve pocket.
    13. Maximum intake runner volume for both brands of head is 170 cc.
    14. HEADS: GM Max. Valve size In. 1.94- Ex. 1.60 Ford Cleveland Max. Valve size In 2.04- Ex. 1.65 Windsor Max. Valve size In. 1.94- Ex. 1.64 Chrysler Max. Valve size In. 1.88- Ex. 1.60
    15. Stainless steel or stock type valves allowed. No titanium valves. No turning of valve stems. An undercut valve may be used. Ball method will be used to test valve stem to seat clearance. Ball size is .787 for intake and .531 for exhaust.
    16. 1.5 rocker arm ratio allowed on Chevrolet engines. 1.6 rocker arm ratio allowed on Ford engines. Valve springs must be stock diameter.
    17. INTAKE MANIFOLDS:  The following Edelbrock #’s are allowed:
      i. GM   ii. Chrysler iii. Cleveland  iv. Windsor  
      2101   2176  2750  2181 

      These manifolds must remain as manufactured.  No port matching or flow work permitted.  1st design manifolds with the same part numbers are not permitted.
    18. Carburetor must be old style, Holley #4412. Specifications will be as follows: Metering block #’s 5924, 5925 and 10570.
      1. metering block power valve channel restriction ports ( 2 holes behind the power valve) max. .0635
      2. metering block idle feed restriction ports ( 2 holes) max. .035
      3. metering block main passage to discharge nozzle ( 2 holes ) max. .141”
      4. main body high speed air bleeds ( 2 holes ) max. .028”
      5. main body idle speed air bleeds ( 2 holes ) max. .074”
      6. butterfly ( throttle plate ) thickness .0398” - .0438”
      7. hole in butterfly .090” - .096”
      8. butterfly must have ID # 215 stamped in it
      9. throttle shaft diameter .368” - .369”
      10. throttle shaft thickness at flat of shaft .152”
      11. venturi bore diameter 1.373” – 1.377”
      12. boost venturi inner bore diameter .377” - .383”
      13. boost venturi outer diameter .610” - ,630”
      14. throttle bore diameter 1.6855” – 1.6865” No re-working of carburetor other than removal of choke plate, filling of choke rod hole, changing of jets and power valve. One piece solid carburetor adapter will be allowed. Carb adapter and gasket combined thickness must not exceed 1.25 inches. No ram air style systems allowed. Air to engine must enter through cowl area and air horn of carb.
    19. BUILT MOTORS may use cast iron exhaust manifolds with a maximum of 2 _ In. ID. ALSTAR 2 1/4 after market manifold part #34200 is also permitted on BUILT MOTORS. BUILT MOTORS may also run headers as listed for CRATE motors but must carry a 100
      pound penalty.
    20. CRATE MOTORS will be allowed 1 5/8 tube headers with one of the following part numbers:
    21. Shoenfeld Headers part # 135, 135H, 145.
    22. FORD MOTORS will be allowed 1 5/8 tube headers.
    23. Mufflers are mandatory. Magnaflow #11219 is recommended.
    24. BUILT MOTORS are allowed a maximum of 2_” O.D. exhaust up to muffler and 3” O.D. beyond muffler.
    25. CRATE MOTORS may run 3” O.D. exhaust for entire system.
    26. 2 into 1 systems are allowed. Crossover pipes are allowed.
    27. Exhaust must exit behind driver outside the body or may be turned down to exit under car behind driver.
    28. No external oil pumps allowed. FORD motors only may run single stage external oil pump.
    29. Battery operated 12 volt ignitions only. Stock single-point distributor and stock type coil only. No dual points. OEM electronic ignitions may be used and require stock type coil and stock type ignition modules. No Mallory or MSD systems allowed. Electrical system must have a MAIN SHUT OFF SWITCH mounted within reach of driver and accessible by safety crews.

    “CRATE MOTOR OPTIONS”   ***Exceptions not outlined above***

    1. In order to achieve clearance to the race track the Crate Motor
    2. (GM 88958602) option may upgrade oil pan to the following :
    3. CHAMP Pan part# CP100 – 7RB Louvered Tray Pan with no Kick-Out
    4. 6 3/4” Harmonic Balancer Allowed

    Crate motor option is available and recommended for this division. Please contact speedway for information on all crate motors regarding required part number, allowable components, purchase of, sealing of, freshening of and availability. If your motor (built or crate) has been properly sealed by the party approved by Kawartha Speedway, Peterborough Speedway, Mosport Speedway, Sunset Speedway, Varney Speedway, Flamboro Speedway, Delaware Speedway, Capital City Speedway or Barrie Speedway and that documentation is verified, you will be legal to compete and not be subject to tear down. This does not make you exempt from any inspection that can be performed with out breaking seals.

    Nor will it exempt competitors from exchange programs or engine dyno programs deemed necessary by Kawartha Speedway

    ANY INCONSITENCIES FOUND WITHIN ANY CRATE MOTOR APPLICATIONS WILL RESULT IN FORFEIT OF ALL POINTS EARNED TO THAT POINT OF SEASON, FORFIET OF MONIES AND POINTS EARNED IN EVENT, AND DISQUALIFICATION FOR REMAINDER OF SEASON.  CRATE MOTOR VIOLATIONS WILL NOT BE TOLERATED!!!

    Safety Requirements:

    1. All drivers must wear approved safety helmets (minimum Snell 2000
      standard).
    2. Fire retardant drivers suit is mandatory. Fire retardant gloves are mandatory and fire retardant shoes are highly recommended.
    3. Aluminum racing seat mandatory.
    4. Driver’s seat must appear as close to stock position as possible. Seat must be securely fastened to roll cage and frame members.
    5. Quick release aviation type, minimum 3 inch safety belts required. Shoulder harness must be fastened to roll cage. Belts may be no older than 3 years prior to date of competition.
    6. An approved driver’s window net is mandatory.
    7. It is mandatory that all cars have a 2_ pound fire extinguisher with gauge, aluminum head and steel mounting bracket. Extinguisher must be attached to the car’s interior on driver’s right side. Extinguisher must be within reach of driver and accessible to safety crews from both sides. On board fire system highly recommended.
    8. Two-Way radio’s are permitted.
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